CN105399271A - Device and method for recycling petroleum and phenol from oilfield industry wastewater and treating and regenerating wastewater - Google Patents

Device and method for recycling petroleum and phenol from oilfield industry wastewater and treating and regenerating wastewater Download PDF

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CN105399271A
CN105399271A CN201510787249.6A CN201510787249A CN105399271A CN 105399271 A CN105399271 A CN 105399271A CN 201510787249 A CN201510787249 A CN 201510787249A CN 105399271 A CN105399271 A CN 105399271A
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waste water
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phenol
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罗依依
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
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    • C02F1/24Treatment of water, waste water, or sewage by flotation
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/26Treatment of water, waste water, or sewage by extraction
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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    • C02F1/38Treatment of water, waste water, or sewage by centrifugal separation
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/40Devices for separating or removing fatty or oily substances or similar floating material
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/442Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
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    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4691Capacitive deionisation
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4693Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F2001/5218Crystallization
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    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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    • C02F3/00Biological treatment of water, waste water, or sewage
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    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes

Abstract

The invention discloses a device for recycling petroleum and phenol from oilfield industry wastewater and treating and regenerating wastewater. The device disclosed by the invention comprises a petroleum recycling unit, a phenol recycling unit, a biochemical treatment unit, an electrolysis unit, a deep wastewater treatment unit, a desalted regenerated water production unit and a sludge treatment unit. A method of the device disclosed by the invention sequentially comprises the following steps: demulsifying, recycling petroleum, recycling phenol, carrying out anaerobic treatment, carrying out aerobic treatment, carrying out electrolysis treatment, carrying out membrane treatment or biochemical treatment by virtue of a biological aerated filter, and desalting. The device and method which are disclosed by the invention have the advantages that petroleum and phenol in the oilfield industry wastewater are recycled, a wax component is recycled, and wastewater is effectively treated, so that resource recycling is realized while oilfield industry wastewater pollution is treated, and wastewater quality can meet emission standards in technical specification for oilfield industry wastewater treatment (HJ2041-2014).

Description

In oil extraction waste water, oily phenol reclaims and wastewater treatment regenerating unit and method
Technical field
The present invention relates to oily phenol in oil extraction waste water to reclaim and wastewater treatment regenerating unit and method, particularly relate to adopt regulate pH breakdown of emulsion, gravity settling separation, centrifugation or air supporting, absorption, anaerobism, the process such as aerobic combined treatment from oil extraction waste water, reclaim oil and phenol and wastewater treatment regenerating unit and method, belong to resource recycling and field of environment engineering.
Background technology
Current, China's onshore oil field substantially all adopts waterflooding mode, namely injects high pressure water to stratum and drives crude oil to make it be extracted from oil well.After water filling after a while, injecting water will be plucked out of with crude oil, and along with the development time extends, extraction crude oil water content constantly rises.That exploit out with crude oil from stratum, containing crude oil oilfield produced water (also known as " recovered water "), the topmost class waste water being oil-field development and producing in producing.Due to the difference of the geologic condition, development scheme, oil formation improvement measure, injection water quality, gathering and transportation technology etc. in each oil field, the nature difference of each oil production waste water in oil field is very large.In general, oil extraction waste water has following characteristic:
(1) oleaginousness is high, the oil usually containing 1000 ~ 2000mg/L in oil extraction waste water, have even up to 5000mg/L, comprise oil slick, dispersed oil, oil in water emulsion and dissolving oil;
(2) containing suspended solids, particle diameter is generally 1 ~ 100 μm, mainly comprises: 1. silt particle; 2. various mineral substance; 3. bacterium: sulphate reducing bacteria (SRB) 5 ~ 10 μm, saprophytic microorganism (TGB) 10 ~ 30 μm; 4. organism: the heavy oils such as gum asphalt class and paraffin.
(3) saltiness is high, and the general inorganic salt content of oil production waste water in oil field is very high, and from several thousand to several ten thousand, hundreds of thousands of mg/litre even, each oil field, even each block, oil reservoir are all different; Mainly comprise: be 1. dissolved in the inorganic salts in water.Substantially exist with the form of anions and canons, its particle diameter is all 1 × 10 -3below μm, mainly comprise Ca 2+, Mg 2+, K +, Na +, Fe 3+, Cl -, HCO 3 -, CO 3 2-deng;
(4) containing bacterium, mainly saprophytic microorganism and sulphate reducing bacteria;
(5) high temperature and high pH, the water temperature of waste water mostly is 40 ~ 80 DEG C, and the pH of waste water is 6.5 ~ 8.5;
In addition, part oil extraction waste water is also containing tensio-active agent and polymkeric substance.
Current, the treatment technology of domestic oil extraction-generated waste water is mainly for produced-water reinjection design.The object of disposing polluted water in oil is the oil removed in water, suspended substance and other hinder water filling, easily cause the unfavorable composition of waterflood system burn into structure.Because the physical chemical differences of each oilfield produced water is comparatively large, therefore various Treatment Process for Oil Extraction Wastewater of Oil Field flow process is also not quite similar.Due to the difference of oil well reservoir characteristics, Produced Liquid physical property and oil field block distribution etc., environment protection improving constantly disposing polluted water in oil in addition, has the requirement of disposing polluted water in oil day by day to improve, disposing polluted water in oil and re-injection not a duck soup.
Along with the raising of environmental requirement, water resources day is becoming tight, and doing oilfield produced water process well is the task of top priority.Due to deepening continuously of oil production, water filling is a kind of conventional oil-field development technology, and many oil fields have entered middle and later periods mining phase, and crude oil water content even reaches more than 90%, and cause oil recovery treatment amount to increase very fast, intractability strengthens.Because water environment pollution is more and more serious, agenda has been laid out in oil extraction waste water process.In recent years, Oilfields oil extraction waste water Treatment process has improved and has improved.Change into oil removal → coagulation air-float → biochemistry → filtering technique by original oil removal → coagulation → filtering technique.Existing oil extraction waste water treatment technology mainly comprises: swash plate oil removing, oil removal by air bubbling, anaerobism (acidication), aerobic, precipitate and the step such as to disinfect.Chen Zhian etc. adopt anaerobism or acidication one aerobic activated sludge process process alkalescence oily(waste)water, and result of study thinks that biological (hydrolysis) acidifying one secondary aeration and sedimentation is the biochemical treatment flow process that oil refining alkaline water is suitable.Liu Huiqing etc. utilize flocculation-biological contact oxidation process process oil extraction waste water, and result shows that COD clearance can reach 68%.Han Qingxiang, Dong Ping etc. adopt flocculation sediment → secondary flocculation sediment → anaerobic biological → aerobic biochemical → charcoal absorption process oil extraction waste water, and result shows that processing rear COD can be less than 100mg/L.Chinese patent CN104445792A describes oilfield sewage and first opens wide spray column through forced ventilation and carry out cooling, then by the process of A/O biochemical system, then add Ca (ClO) 2carry out oxide treatment, finally by the method for multi-medium filtering process being filled with gac, the inflow requirement COD of its sewage is 350 ~ 600mg/L, and water outlet is 50 ~ 150mg/L.Chinese patent CN1047100354A describes a kind of method for deeply treating water extracted out from oil field, comprises the steps: that oil field extracted water carries out cooling process again after pre-treatment, adds coagulated agent, and carry out Homogeneous phase mixing process; Pass into the method that immersion ultra-filtration equipment carries out ultrafiltration.
Deal with the work for instructing oil extraction waste water, Department of the Environment has put into effect " oil extraction waste water harnessing project technical specifications " (HJ2041-2014) in 2014, specification recommends adopts: the treatment process of oil extraction waste water → pre-treatment → anaerobic biological treatment → Aerobic biological process → biochemical aftertreatment → qualified discharge.In sum, although the treatment technology of oil extraction waste water is existing many, the discharge water after the process of existing oil extraction waste water treatment technology all can not reach the emission standard that COD is less than or equal to 50mg/L, and has following shortcoming:
1, the oil extraction waste water water-quality guideline after reclaiming oil can not meet the emission standard required in " oil extraction waste water harnessing project technical specifications " (HJ2041-2014) usually;
2, containing a large amount of impurity in the oil reclaimed, the processing difficulties of the later use reclaiming oil is caused;
3, oil extraction waste water directly carries out air supporting after gravity settling, consume a large amount of flocculation agents and coagulant aids, causes working cost high;
4, can produce a large amount of oily sludges, the further process of mud can produce more expense.
Summary of the invention
The object of the invention is to the deficiency for existing oil extraction waste water PetroChina Company Limited. and phenol recovery technology, provide a kind of from oil extraction waste water, reclaim oil, phenol the apparatus and method that waste water is processed.
In oil extraction waste water, oily phenol reclaims and wastewater treatment regenerating unit, is formed by with lower unit:
(1) petroleum recovery unit: petroleum recovery unit is made up of breakdown of emulsion pond, gravity oil-removing device, whizzer or air-floating apparatus, petroleum storage tanks and wastewater collection pond; The import in breakdown of emulsion pond connects with the wastewater outlet of the sloping panel deoiling unit of front operation, the outlet in breakdown of emulsion pond connects with the water-in of gravity oil-removing device, whizzer or air-floating apparatus, the water outlet of gravity oil-removing device, whizzer or air-floating apparatus connects with the water-in in wastewater collection pond, and the oil outlet of gravity oil-removing device, whizzer or air-floating apparatus connects with the import of petroleum storage tanks;
(2) phenol recovery unit: phenol recovery unit is by phenol absorption tower, form containing phenol elutriant basin, dephenolize waste water basin, extraction agent basin, phenol extraction tank, distillation crystallization apparatus, phenol basin; The import of phenol adsorption tower connects with the water outlet in wastewater collection pond, the wastewater outlet of phenol adsorption tower connects with the import of dephenolize waste water basin, the elutriant outlet of phenol adsorption tower connects with the import containing phenol elutriant basin, outlet containing phenol elutriant basin connects with the waste water inlet of phenol extraction tank, the extraction agent import of phenol extraction tank connects with the outlet of extraction agent basin, the outlet of phenol extraction tank connects with the import of distillation crystallization apparatus, the lighting end of distillation crystallization apparatus connects with the import of extraction agent basin, and the last running of distillation crystallization apparatus connects with the import of phenol basin;
(3) biochemical treatment unit: biochemical treatment unit is made up of anaerobic treatment pool, aerobic treatment pond and settling tank; The water-in of anaerobic treatment pool is connected with the water outlet of phenol recovery unit, the water outlet of anaerobic treatment pool is connected with the water-in in aerobic treatment pond, the water outlet in aerobic treatment pond is connected with the water-in of settling tank, and the water outlet of settling tank is connected with the water-in of electrolysis cells;
(4) electrolysis cells: electrolysis cells is the one of general electrolytic equipment or nano-catalytic electrolyzer, for eliminate biochemistry be difficult to remove remaining COD and to waste water disinfection, kill the microorganism in waste water;
(5) Sewage advanced treatment unit: Sewage advanced treatment unit is made up of MBR device, ultra-filtration equipment or BAF;
(6) desalination reuse water productive unit: desalination reuse water productive unit is the one of reverse osmosis system, nanofiltration system, electrodialysis system or capacitive adsorption deionizing system; The water-in of desalination reuse water productive unit connects with the water outlet of the advanced water treatment basin of Sewage advanced treatment unit, the reuse water outlet of desalination reuse water productive unit connects with reuse water retention basin, and the condensed water outlet of desalination reuse water productive unit connects with the water-in of crystallizing pond; The reverse osmosis membrane assembly of reverse osmosis system is rolled membrane module, and mould material is cellulose acetate film or composite membrane in organic membrane, and the molecular weight cut-off of mould material is 50 ~ 200MWCO, and entrance pressure is 6.0 ~ 45.0bar, and going out pressure is 4.5 ~ 33.5bar; Nanofiltration membrane component in nanofiltration system is the one of tubular membrane component, rolled membrane module or plate film assembly, and operating pressure is 6 ~ 45bar, and working temperature is 20 ~ 45 DEG C; The working conditions of electrodialysis system is operating voltage pressure 0.5 ~ 3.0kg/cm 2, operating voltage 50 ~ 250V, strength of current 1 ~ 3A; The working conditions of capacitive adsorption deionizing system is volts DS is 110V ~ 2 × 10 6v;
(7) sludge treating block: sludge treating block comprises mud mixing pit, gravity concentration tank, water extracter and sewage sludge harmlessness treatment unit; Mud mixing pit is connected with the sludge outlet of petroleum recovery unit and biochemical treatment unit with valve respectively by pipeline, pump;
Described petroleum recovery unit, phenol recovery unit, biochemical treatment unit, electrolysis cells, Sewage advanced treatment unit, desalination reuse water productive unit are connected by pipeline, pump successively with sludge treating block.
Described gravity oil-removing device is the one in natural subsidence separate tank, sloping panel deoiling unit or hydrocyclone oil removal plant.
A heat exchanger is also had before described breakdown of emulsion pond.
Described breakdown of emulsion pond also comprises volume pump, emulsion splitter basin, collecting hood and gas purge tank; The outlet of emulsion splitter basin connects with the import of volume pump, and metering pump outlet connects with the emulsion splitter import in breakdown of emulsion pond; Collecting hood is positioned at the top in breakdown of emulsion pond, and is connected with purge of gas tank by pipeline.
A filtration unit or whizzer is also provided with between the settling tank of described biochemical treatment unit and harmless treatment device, described filtration unit is the one of MBR device, pillar ultra-filtration equipment, pipe type ultrafiltration device, and the mould material of filtration unit is the one of ceramic membrane, metallic membrane or organic membrane.
Gac or macroporous resin is filled with in the phenol absorption tower of described phenol recovery unit.
A light electrolysis unit is also provided with between described phenol recovery unit and biochemical treatment unit, described light electrolysis unit is made up of micro cell body or tank body, filler support, iron-carbon micro-electrolysis filler, aerating apparatus, wastewater collection cover and absorption tower, filler support is arranged on micro cell or tank base, iron-carbon micro-electrolysis filler is placed on filler support, wastewater collection cover is arranged on the top of micro cell body or tank body, the waste gas produced during for collecting light electrolysis cell operation, absorption tower is built with the gac or the resin that process waste gas.
Utilize above-mentioned oil extraction waste water PetroChina Company Limited., the recovery of phenol and wastewater treatment equipment and realize oil recovery PetroChina Company Limited., the recovery of phenol and wastewater treatment qualified discharge by following treatments, comprising the steps:
(1) breakdown of emulsion: be 50 ~ 6000mg/L, COD by oil-containing be 300 ~ 7000mg/L, SS be 50 ~ 500mg/L, saltiness to be 1000 ~ 20000mg/L, pH be 6.5 ~ 9.5 oil extraction waste water add acid for adjusting pH to 2 ~ 6 breakdown of emulsion, the PAM then adding 0.1 ~ 10mg/L makes oil and wax separate out;
(2) petroleum recovery: by the oil extraction waste water after step (1) breakdown of emulsion through gravity settling separation, centrifugation or dissolved air flotation, obtain oil and the de-oiling of recovery or the waste water that dewaxes, the COD of de-oiling or dewaxing waste water drops to 900mg/L and accepts;
(3) phenol reclaims: the de-oiling after step (2) petroleum recovery or dewaxing waste water are carried out absorption phenol through adsorption tower, makes the COD of waste water drop to below 500mg/L from 900mg/L; Absorb saturated after, the saturated rear use of absorption tower adsorbs takes off lotion wash-out and reclaims after phenol, then uses regenerated liquid wash-out, and absorption inner-tower filling material is regenerated;
(4) anaerobism: will enter anaerobic pond by gained waste water after the recycling of step (3) phenol, improve the B/C value of waste water through anaerobic treatment, improve the biodegradability of waste water, the COD of waste water drops to below 300mg/l;
(5) aerobic: after step (4) anaerobic treatment, will to enter Aerobic Pond by gained waste water, by the organism in the further oxygenolysis waste water of aerobic treatment, the degree of depth removes COD and BOD, and the COD of waste water drops to below 150mg/l;
(6) electrolysis treatment: the clear liquid of step (5) aerobic treatment gained is entered electrolyzer and carries out electrolysis treatment, the emission standard that namely water outlet reaches comprehensively " oil extraction waste water harnessing project technical specifications " (HJ2041-2014);
(7) film process or BAF biochemistry
Oil extraction waste water after step (6) electrolysis treatment enters membrane treatment appts or BAF, is purified, remove COD, SS further, be purified waste water by the filtering separation of membrane treatment appts or oxidation degradation effect to waste water; Described membrane treatment appts is the one of membrane bioreactor or ultra-filtration equipment;
(8) desalination: the waste water after step (7) film process or BAF biochemistry enters desalting plant, and be separated to obtain water-dialyzing and condensed water, water-dialyzing enters reuse water basin, condensed water then enters evaporative crystallization pond through discharge channel discharge and carries out crystallization treatment; Described desalting plant is the one of reverse osmosis system, nanofiltration system, electrodialysis or capacitive adsorption deionizing system.
Acid described in step (1) breakdown of emulsion is the one of sulfuric acid, nitric acid, phosphoric acid or hydrochloric acid, and the best is sulfuric acid.
The best breakdown of emulsion condition of step (1) breakdown of emulsion waste water is added acid to regulate its pH to 2.5 ~ 3.
Petroleum recovery described in step (2) pumps in gravity settling basin after the oil extraction waste water after gravity settling oil removing is added acid for adjusting pH to 2 ~ 6 breakdown of emulsion, be the oil on upper strata and the oil extraction waste water of lower floor through gravity settling separation, the oil on upper strata reclaims through recovery tube.
The centrifugation described in petroleum recovery of step (2) pumps in whizzer after the oil extraction waste water after gravity settling oil removing is added acid for adjusting pH to 2 ~ 6, be the oil of lower floor and the degreased wastewater on upper strata through centrifugation, the oil of lower floor reclaims through recovery tube; The centrifugal force of centrifugation is 2200 ~ 4000, and best centrifugal force is 3200 ~ 4000.
Step (3) phenol reclaims between step (4) anaerobism, and also comprise a Fe-C micro electrolysis treatment step, remove the COD of 30 ~ 70% further and improve its biodegradability, the COD of waste water drops to below 400mg/L.
As mentioned above, each step to the principal pollutant removal effect of oil extraction waste water as table 1.
The each step of table 1 is to the removal effect table of main contamination index
The present invention compared with the prior art, has following outstanding advantages:
(1) when reclaiming oil, except acid adding is as except emulsion splitter, not using flocculation agent and gas floatation agent, from waste water, not only reclaiming oil purity higher, impure few, be convenient to processing, and, save reagent cost in a large number, reduce sludge quantity and sludge treatment cost;
(2) by the petroleum recovery in oil extraction waste water, while process oil extraction waste water pollutes, achieve the recycling of resource, meanwhile Pollution abatement is carried out to oil extraction waste water, made waste water quality can reach emission standard in " oil extraction waste water harnessing project technical specifications " (HJ2041-2014);
(3) after recovery oil, reclaim phenol again, both achieved the comprehensive utilization of resource, turn eliminated the impact on biochemical treatment of phenol;
(4) produce mud few, drastically reduce the area sludge treatment cost;
(5) while recovery oil, the wax composition of recovery, creates good condition to follow-up wastewater treatment;
(6) sewage treatment technology process is short, and cost for wastewater treatment is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of oily phenol recovery and wastewater treatment regenerating unit in oil extraction waste water of the present invention;
Fig. 2 is the structure composition schematic diagram of oily phenol recovery and wastewater treatment regenerating unit PetroChina Company Limited.'s recovery unit and phenol recovery unit in oil extraction waste water of the present invention;
Fig. 3 is the structure composition schematic diagram of oily phenol recovery and wastewater treatment regenerating unit mesophytization processing unit in oil extraction waste water of the present invention;
Fig. 4 is that in oil extraction waste water of the present invention, oily phenol reclaims and the structure composition schematic diagram of sludge treating block in wastewater treatment regenerating unit;
Fig. 5 is that in oil extraction waste water of the present invention, oily phenol reclaims and the structure composition schematic diagram of light electrolysis unit in wastewater treatment regenerating unit;
Fig. 6 is the process flow diagram of oily phenol recovery and method of wastewater treatment in oil extraction waste water of the present invention.
Embodiment
The present invention is based on the composition of oil extraction waste water, character and existing processing scheme, devise oily phenol in oil extraction waste water to reclaim and wastewater treatment regenerating unit, devise a kind for the treatment of unit of oil extraction waste water, referring to figs. 1 through Fig. 4, it is by combinations such as petroleum recovery unit 10, phenol recovery unit 20, biochemical treatment unit 30, electrolysis cells 40, Sewage advanced treatment unit 50, desalination reuse water productive unit 60 and sludge treating block 70, thus formed a kind of can high efficiente callback oil phenol and the regenerating treater of oil extraction waste water.
Petroleum recovery unit is made up of wastewater equalization pond 1-1, accident pool 1-2, breakdown of emulsion pond 1-3, sour basin 1-4, gravity oil-removing device/whizzer or air-floating apparatus 1-5, oil stockpile tank 1-6, wastewater collection pond 1-7.Gravity oil-removing device is the one in natural subsidence separate tank, sloping panel deoiling unit or hydrocyclone oil removal plant.
A heat exchanger 1-23 is also had before above-mentioned breakdown of emulsion pond 1-3; This breakdown of emulsion pond 1-3 also comprises volume pump 1-31, emulsion splitter basin 1-32, collecting hood 1-33 and gas purge tank 1-34; The outlet of emulsion splitter basin 1-32 connects with the import of volume pump 1-31, and the outlet of volume pump 1-31 connects with the emulsion splitter import of breakdown of emulsion pond 1-3; Collecting hood 1-33 is positioned at the top of breakdown of emulsion pond 1-3, and is connected with purge of gas tank 1-34 by pipeline.
Phenol recovery unit 20 is by phenol absorption tower 2-1, form containing phenol elutriant basin 2-2, dephenolize waste water basin 2-3, extraction agent basin 2-4, phenol extraction tank 2-5, distillation crystallization apparatus 2-6, phenol basin 2-7.Gac or macroporous resin is filled with in the 2-1 of phenol absorption tower, the import of phenol adsorption tower 2-1 connects with the water outlet of wastewater collection pond 1-7, the wastewater outlet of phenol adsorption tower 2-1 connects with the import of dephenolize waste water basin 2-3, the elutriant outlet of phenol adsorption tower 2-1 connects with the import containing phenol elutriant basin 2-2, outlet containing phenol elutriant basin 2-2 connects with the waste water inlet of phenol extraction tank 2-5, the extraction agent import of phenol extraction tank 2-5 connects with the outlet of extraction agent basin 2-4, the outlet of phenol extraction tank 2-5 connects with the import of distillation crystallization apparatus, the lighting end of distillation crystallization apparatus 2-6 connects with the import of extraction agent basin 2-4, the last running of distillation crystallization apparatus 2-6 connects with phenol basin 2-7 import.
Biochemical treatment unit 30 is made up of anaerobic treatment pool 3-1, aerobic treatment pond 3-2 and settling tank 3-3; The water-in of anaerobic treatment pool is connected with the water outlet of phenol recovery unit 20, the water outlet of anaerobic treatment pool 3-1 is connected with the water-in of aerobic treatment pond 3-2, the water outlet of aerobic treatment pond 3-2 is connected with the water-in of settling tank 3-3, and the water outlet of settling tank 3-3 is connected with the water-in of electrolysis cells 40.
Electrolysis cells 40 is one of general electrolytic equipment or nano-catalytic electrolyzer, for eliminate biochemistry be difficult to remove remaining COD and to waste water disinfection, kill the microorganism in waste water.
Sewage advanced treatment unit 50 is made up of MBR device, ultra-filtration equipment or BAF.
Desalination reuse water productive unit 60 is one of reverse osmosis system, nanofiltration system, electrodialysis system or capacitive adsorption deionizing system; The water-in of desalination reuse water productive unit connects with the water outlet of the advanced water treatment basin of Sewage advanced treatment unit 50, the reuse water outlet of desalination reuse water productive unit 60 connects with reuse water retention basin, and the condensed water outlet of desalination reuse water productive unit 60 connects with the water-in of crystallizing pond; The reverse osmosis membrane assembly of reverse osmosis system is rolled membrane module, and mould material is cellulose acetate film or composite membrane in organic membrane, and the molecular weight cut-off of mould material is 50 ~ 200MWCO, and entrance pressure is 6.0 ~ 45.0bar, and going out pressure is 4.5 ~ 33.5bar; Nanofiltration membrane component in nanofiltration system is the one of tubular membrane component, rolled membrane module or plate film assembly, and operating pressure is 6 ~ 45bar, and working temperature is 20 ~ 45 DEG C; The working conditions of electrodialysis system is operating voltage pressure 0.5 ~ 3.0kg/cm 2, operating voltage 50 ~ 250V, strength of current 1 ~ 3A; The working conditions of capacitive adsorption deionizing system is volts DS is 110V ~ 2 × 10 6v.
Sludge treating block 70 comprises mud mixing pit 7-1, gravity concentration tank 7-2, water extracter 7-3 and sewage sludge harmlessness treatment unit 7-4; Mud mixing pit 7-1 is connected with the sludge outlet of petroleum recovery unit 10 and biochemical treatment unit 30 with valve respectively by pipeline, pump.
A filtration unit or whizzer is also provided with between the settling tank 3-3 of above-mentioned biochemical treatment unit 30 and harmless treatment device 7-4, this filtration unit is the one of MBR device, pillar ultra-filtration equipment, pipe type ultrafiltration device, and the mould material of filtration unit is the one of ceramic membrane, metallic membrane or organic membrane.
With reference to Fig. 1 and Fig. 5, a light electrolysis unit 80 is also provided with between above-mentioned phenol recovery unit 20 and biochemical treatment unit 30, this light electrolysis unit is by micro cell body or tank body 8-1, filler support 8-2, iron-carbon micro-electrolysis filler 8-3, aerating apparatus 8-4, wastewater collection cover 8-5 and absorption tower 8-6 is formed, filler support 8-2 is arranged on bottom micro cell or tank body 8-1, iron-carbon micro-electrolysis filler 8-3 is placed on filler support 8-2, wastewater collection cover 8-5 is arranged on the top of micro cell body or tank body 8-1, for collecting the waste gas produced when light electrolysis unit 80 works, absorption tower 8-6 is built with the gac or the resin that process waste gas.
Illustrate that the present invention adopts useless oil-in-water phenol to reclaim and method of wastewater treatment below in conjunction with Fig. 5.
embodiment 1
(1) breakdown of emulsion: oil extraction waste water to be collected in wastewater equalization pond 1-1 through pipeline and to mix in wastewater equalization pond 1-1, regulate the waste water water yield, to detect its oil-containing be 50mg/L, COD be 300mg/L, SS is 50mg/L, saltiness be 1000mg/L, pH is 6.5.Oil extraction waste water through wastewater equalization pond is pumped into breakdown of emulsion pond 1-3, add sulphur acid for adjusting pH to 6 breakdown of emulsion, by 5g/m 3add PAM.
(2) petroleum recovery: the oil extraction waste water of step (1) breakdown of emulsion gained is pumped into gravity oil-removing device 1-5, reclaims to obtain oil 49g/m through gravity settling separation 3with the oil extraction waste water after de-oiling, oil stockpile is in oil stockpile tank 1-6, and the oil extraction waste water after de-oiling is stored in the 1-7 of wastewater collection pond, and the COD of waste water drops to 256mg/L from 300mg/L.
Described gravity settling separation is that oil extraction waste water is put into gravity settling basin, and be the oil on upper strata and the degreased wastewater of lower floor through gravity settling separation, the oil on upper strata reclaims through recovery tube.
(3) phenol reclaims: adsorbed through phenol adsorption tower 2-1 by the degreased wastewater after step (2) petroleum recovery, the filled absorption of phenol, then through desorption with except desorbing agent, obtains crude phenols.The COD of waste water drops to 206mg/L from 256mg/L.
(4) anaerobism: make to enter anaerobic pond 3-1 through step (3) light electrolysis gained waste water, improve the B/C value of waste water through anaerobic treatment, improve the biodegradability of waste water, the COD of waste water drops to 152mg/L from 206mg/L.
(5) aerobic: to make gained waste water after step (4) anaerobic treatment enter Aerobic Pond 3-2, by the organism in the further oxygenolysis waste water of aerobic treatment, the degree of depth removes COD and BOD, and the COD of waste water drops to 82mg/L from 152mg/L.
(6) electrolysis treatment: the clear liquid of step (5) aerobic treatment gained is entered electrolysis cells 40 and carries out electrolysis treatment, the emission standard that namely water outlet reaches comprehensively " oil extraction waste water harnessing project technical specifications " (HJ2041-2014).
The operating voltage of the electrolysis machine that above-mentioned electrolysis cells 40 adopts is 1 ~ 36V, and two interelectrode voltages are 1 ~ 2V, and current density is 5mA/cm 2, the residence time of step (5) Aerobic Pond water outlet in electrolysis machine is 30s.
Electrolysis machine is provided with power supply and electrolyzer, and the electrode in described electrolyzer is the one in graphite, titanium, iron, aluminium, zinc, copper, lead, nickel, molybdenum, chromium, alloy and nano-catalytic noble electrode.
The top layer of nano-catalytic noble electrode is coated with the metal oxide containing precious metals inertia catalyst coatings that crystal grain is 10 ~ 35nm, and the substrate of described nano-catalytic noble electrode is titanium plate or plastic plate.
(7) film process or BAF biochemistry (BAF is biochemical)
Oil extraction waste water after step (6) electrolysis treatment enters membrane treatment appts or BAF, is purified, remove COD, SS further, be purified waste water by the filtering separation of membrane treatment appts or oxidation degradation effect to waste water; Described membrane treatment appts can be the one of membrane bioreactor (MBR device) or ultra-filtration equipment.
(8) desalination: the waste water after step (7) film process or BAF biochemistry (BAF is biochemical) enters desalting plant, be separated to obtain water-dialyzing and condensed water, water-dialyzing enters reuse water basin, and condensed water then enters evaporative crystallization pond through discharge channel discharge and carries out crystallization treatment; Described desalting plant can be the one of reverse osmosis system, nanofiltration system, electrodialysis or capacitive adsorption deionizing system.
embodiment 2
(1) breakdown of emulsion: to be collected in equalizing tank 1-1 through pipeline by oil extraction waste water and to mix in equalizing tank 1-1, regulating the waste water water yield, to detect its oil-containing be 6000mg/L, COD be 7000mg/L, SS is 500mg/L, saltiness be 20000mg/L, pH is 9.5.Oil extraction waste water through equalizing tank is pumped into pH regulator pond (breakdown of emulsion pond) 1-3, add sulphur acid for adjusting pH to 2 breakdown of emulsion, by 10g/m 3add PAM.
(2) petroleum recovery: step (1) breakdown of emulsion gained oil extraction waste water is obtained oil 5998g/m through whizzer Separation and Recovery 3with de-oiling oil extraction waste water, oil stockpile is in hold tank 1-6, and de-oiling oil extraction waste water is stored in the 1-7 of wastewater collection pond, and the COD of waste water drops to 892mg/L from 7000mg/L.
Described centrifugation be by breakdown of emulsion after oil extraction waste water pump in whizzer 1-5, the centrifugal force of centrifugation is 2200 ~ 4000; Be the oil of lower floor and the degreased wastewater on upper strata through centrifugation, the oil of lower floor reclaims through recovery tube.
(3) phenol reclaims: adsorbed through phenol adsorption tower 2-1 by the degreased wastewater after step (2) petroleum recovery, the filled absorption of phenol, then through desorption with except desorbing agent, obtains crude phenols.The COD of waste water drops to 500mg/L from 892mg/L.
(4) light electrolysis: the degreased wastewater after reclaiming through step (3) phenol is carried out light electrolysis through iron-carbon micro-electrolysis pond, and the COD of waste water drops to 291mg/L from 500mg/L.
(5) anaerobism: make to enter anaerobic pond 3-1 through step (4) light electrolysis gained waste water, improve the B/C value of waste water through anaerobic treatment, improve the biodegradability of waste water, the COD of waste water drops to 192mg/L from 291mg/L.
(6) aerobic: to make gained waste water after step (5) anaerobic treatment enter Aerobic Pond 3-2, by the organism in the further oxygenolysis waste water of aerobic treatment, the degree of depth removes COD and BOD, and the COD of waste water drops to 129mg/L from 192mg/L.
(7) electrolysis treatment: the clear liquid of step (6) aerobic treatment gained is entered electrolysis cells 40 and carries out electrolysis treatment, the emission standard that namely water outlet reaches comprehensively " oil extraction waste water harnessing project technical specifications " (HJ2041-2014).
The operating voltage of the electrolysis machine that above-mentioned electrolysis cells 40 adopts is 1 ~ 36V, and two interelectrode voltages are 1 ~ 2V, and current density is 5mA/cm 2, the residence time of step (6) Aerobic Pond water outlet in electrolysis machine is 30s.
Electrolysis machine is provided with power supply and electrolyzer, and the electrode in described electrolyzer is the one in graphite, titanium, iron, aluminium, zinc, copper, lead, nickel, molybdenum, chromium, alloy and nano-catalytic noble electrode.
The top layer of nano-catalytic noble electrode is coated with the metal oxide containing precious metals inertia catalyst coatings that crystal grain is 10 ~ 35nm, and the substrate of described nano-catalytic noble electrode is titanium plate or plastic plate.
(8) film process or BAF biochemistry (BAF is biochemical)
Oil extraction waste water after step (7) electrolysis treatment enters membrane treatment appts or BAF, is purified, remove COD, SS further, be purified waste water by the filtering separation of membrane treatment appts or oxidation degradation effect to waste water; Described membrane treatment appts can be the one of membrane bioreactor (MBR device) or ultra-filtration equipment.
(9) desalination: the waste water after step (8) film process or BAF biochemistry (BAF is biochemical) enters desalting plant, be separated to obtain water-dialyzing and condensed water, water-dialyzing enters reuse water basin, and condensed water then enters evaporative crystallization pond through discharge channel discharge and carries out crystallization treatment; Described desalting plant can be the one of reverse osmosis system, nanofiltration system, electrodialysis or capacitive adsorption deionizing system.
embodiment 3
(1) breakdown of emulsion: oil extraction waste water to be collected in wastewater equalization pond 1-1 through pipeline and to mix in wastewater equalization pond 1-1, regulate the waste water water yield, to detect its oil-containing be 450mg/L, COD be 610mg/L, SS is 200mg/L, saltiness be 3200mg/L, pH is 7.2.Oil extraction waste water through wastewater equalization pond is pumped into breakdown of emulsion pond 1-3, add sulphur acid for adjusting pH to 4 breakdown of emulsion, by 4g/m 3add PAM.
(2) petroleum recovery: the oil extraction waste water of step (1) breakdown of emulsion gained is pumped into whizzer 1-5 and is separated, reclaim to obtain oil 448g/m 3with the oil extraction waste water after de-oiling, oil stockpile is in oil stockpile tank 1-6, and the oil extraction waste water after de-oiling is stored in the 1-7 of wastewater collection pond.
Described centrifugation pumps in whizzer 1-5 by the oil extraction waste water after breakdown of emulsion, and be the oil of lower floor and the degreased wastewater on upper strata through centrifugation, the oil of lower floor reclaims through recovery tube; The centrifugal force of centrifugation is 3300 ~ 3500.
(3) phenol reclaims: adsorbed through phenol adsorption tower 2-1 by the degreased wastewater after step (2) petroleum recovery, the filled absorption of phenol, then through desorption with except desorbing agent, obtains crude phenols.The COD of waste water drops to 103mg/L from 162g/L.
(4) anaerobism: make to enter anaerobic pond 3-1 through step (3) light electrolysis gained waste water, improves the B/C value of waste water, improves the biodegradability of waste water through anaerobic treatment.
(5) aerobic: to make gained waste water after step (4) anaerobic treatment enter Aerobic Pond 3-2, by the organism in the further oxygenolysis waste water of aerobic treatment, the degree of depth removes COD and BOD.
(6) electrolysis treatment: the clear liquid of step (5) aerobic treatment gained is entered electrolysis cells 40 and carries out electrolysis treatment, the emission standard that namely water outlet reaches comprehensively " oil extraction waste water harnessing project technical specifications " (HJ2041-2014).
The operating voltage of the electrolysis machine that above-mentioned electrolysis cells 40 adopts is 1 ~ 36V, and two interelectrode voltages are 1 ~ 3V, and current density is 120mA/cm 2, the residence time of step (5) Aerobic Pond water outlet in electrolysis machine is 10min.
Electrolysis machine is provided with power supply and electrolyzer, and the electrode in described electrolyzer is the one in graphite, titanium, iron, aluminium, zinc, copper, lead, nickel, molybdenum, chromium, alloy and nano-catalytic noble electrode.
The top layer of nano-catalytic noble electrode is coated with the metal oxide containing precious metals inertia catalyst coatings that crystal grain is 10 ~ 35nm, and the substrate of described nano-catalytic noble electrode is titanium plate or plastic plate.
(7) film process or BAF biochemistry (BAF is biochemical)
Oil extraction waste water after step (6) electrolysis treatment enters membrane treatment appts or BAF, is purified, remove COD, SS further, be purified waste water by the filtering separation of membrane treatment appts or oxidation degradation effect to waste water; Described membrane treatment appts can be the one of membrane bioreactor (MBR device) or ultra-filtration equipment.
(8) desalination: the waste water after step (7) film process or BAF biochemistry (BAF is biochemical) enters desalting plant, be separated to obtain water-dialyzing and condensed water, water-dialyzing enters reuse water basin, and condensed water then enters evaporative crystallization pond through discharge channel discharge and carries out crystallization treatment; Described desalting plant can be the one of reverse osmosis system, nanofiltration system, electrodialysis or capacitive adsorption deionizing system.
embodiment 4
(1) breakdown of emulsion: to be collected in equalizing tank 1-1 through pipeline by oil extraction waste water and to mix in equalizing tank 1-1, regulating the waste water water yield, to detect its oil-containing be 4320mg/L, COD be 5200mg/L, SS is 200mg/L, saltiness be 15200mg/L, pH is 9.5.Oil extraction waste water through equalizing tank is pumped into breakdown of emulsion pond 1-3, add sulphur acid for adjusting pH to 4 breakdown of emulsion, by 8g/m 3add PAM.
(2) petroleum recovery: step (1) breakdown of emulsion gained oil extraction waste water is obtained oil 5998g/m through whizzer Separation and Recovery 3with de-oiling oil extraction waste water, oil stockpile is in hold tank 1-6, and de-oiling oil extraction waste water is stored in the 1-7 of wastewater collection pond, and the COD of waste water drops to 859mg/L from 5200mg/L.
(3) phenol reclaims: adsorbed through phenol adsorption tower 2-1 by the degreased wastewater after step (2) petroleum recovery, the filled absorption of phenol, then through desorption with except desorbing agent, obtains crude phenols.The COD of waste water drops to 500mg/L from 859mg/L.
(4) light electrolysis: the degreased wastewater after reclaiming through step (3) phenol is carried out light electrolysis through iron-carbon micro-electrolysis pond, and the COD of waste water drops to 283mg/L from 500mg/L.
(5) anaerobism: make to enter anaerobic pond 3-1 through step (4) light electrolysis gained waste water, improve the B/C value of waste water through anaerobic treatment, improve the biodegradability of waste water, the COD of waste water drops to 163mg/L from 283mg/L.
(6) aerobic: to make gained waste water after step (5) anaerobic treatment enter Aerobic Pond 3-2, by the organism in the further oxygenolysis waste water of aerobic treatment, the degree of depth removes COD and BOD, and the COD of waste water drops to 123mg/L from 163mg/L.
(7) electrolysis treatment: the clear liquid of step (6) aerobic treatment gained is entered electrolysis cells 40 and carries out electrolysis treatment, the emission standard that namely water outlet reaches comprehensively " oil extraction waste water harnessing project technical specifications " (HJ2041-2014).
The operating voltage of the electrolysis machine that above-mentioned electrolysis cells 40 adopts is 1 ~ 36V, and two interelectrode voltages are 1 ~ 2V, and current density is 5 ~ 320mA/cm 2, the residence time of step (6) Aerobic Pond water outlet in electrolysis machine is 30s ~ 5min.
Electrolysis machine is provided with power supply and electrolyzer, and the electrode in described electrolyzer is the one in graphite, titanium, iron, aluminium, zinc, copper, lead, nickel, molybdenum, chromium, alloy and nano-catalytic noble electrode.
The top layer of nano-catalytic noble electrode is coated with the metal oxide containing precious metals inertia catalyst coatings that crystal grain is 10 ~ 35nm, and the substrate of described nano-catalytic noble electrode is titanium plate or plastic plate.
(8) film process or BAF biochemistry (BAF is biochemical)
Oil extraction waste water after step (7) electrolysis treatment enters membrane treatment appts or BAF, is purified, remove COD, SS further, be purified waste water by the filtering separation of membrane treatment appts or oxidation degradation effect to waste water; Described membrane treatment appts can be the one of membrane bioreactor (MBR device) or ultra-filtration equipment.
(9) desalination: the waste water after step (8) film process or BAF biochemistry (BAF is biochemical) enters desalting plant, be separated to obtain water-dialyzing and condensed water, water-dialyzing enters reuse water basin, and condensed water then enters evaporative crystallization pond through discharge channel discharge and carries out crystallization treatment; Described desalting plant can be the one of reverse osmosis system, nanofiltration system, electrodialysis or capacitive adsorption deionizing system.
embodiment 5
(1) breakdown of emulsion: to be collected in equalizing tank 1-1 through pipeline by oil extraction waste water and to mix in equalizing tank 1-1, regulating the waste water water yield, to detect its oil-containing be 520mg/L, COD be 1250mg/L, SS is 200mg/L, saltiness be 3500mg/L, pH is 7.3.Oil extraction waste water through equalizing tank is pumped into breakdown of emulsion pond 1-3, add sulphur acid for adjusting pH to 4 breakdown of emulsion, by 7g/m 3add PAM.
(2) petroleum recovery: pump in gravity oil-removing device 1-5 by step (1) breakdown of emulsion gained waste water, through gravity settling separation, obtains the oil 516g/m of recovery 3and degreased wastewater, oil stockpile is in petroleum storage tank 1-6, and degreased wastewater is sent in the 1-7 of wastewater collection pond.The COD of waste water drops to 734mg/L from 1250mg/L.
(3) phenol reclaims: adsorbed through phenol adsorption tower 2-1 by the degreased wastewater after step (2) petroleum recovery, the filled absorption of phenol, then through desorption with except desorbing agent, obtains crude phenols.The COD of waste water drops to 461mg/L from 734mg/L.
(4) light electrolysis: the degreased wastewater after reclaiming through step (3) phenol is carried out light electrolysis through iron-carbon micro-electrolysis pond, and the COD of waste water drops to 245mg/L from 461mg/L.
(5) anaerobism: make to enter anaerobic pond 3-1 through step (4) light electrolysis gained waste water, improve the B/C value of waste water through anaerobic treatment, improve the biodegradability of waste water, the COD of waste water drops to 152mg/L from 245mg/L.
(6) aerobic: to make gained waste water after step (5) anaerobic treatment enter Aerobic Pond 3-2, by the organism in the further oxygenolysis waste water of aerobic treatment, the degree of depth removes COD and BOD, and the COD of waste water drops to 123mg/L from 163mg/L.
(7) electrolysis treatment: the clear liquid of step (6) aerobic treatment gained is entered electrolysis cells 40 and carries out electrolysis treatment, the emission standard that namely water outlet reaches comprehensively " oil extraction waste water harnessing project technical specifications " (HJ2041-2014).
The operating voltage of the electrolysis machine that above-mentioned electrolysis cells 40 adopts is 1 ~ 36V, and two interelectrode voltages are 1 ~ 2V, and current density is 150mA/cm 2, the residence time of step (6) Aerobic Pond water outlet in electrolysis machine is 20min.
Electrolysis machine is provided with power supply and electrolyzer, and the electrode in described electrolyzer is the one in graphite, titanium, iron, aluminium, zinc, copper, lead, nickel, molybdenum, chromium, alloy and nano-catalytic noble electrode.
The top layer of nano-catalytic noble electrode is coated with the metal oxide containing precious metals inertia catalyst coatings that crystal grain is 10 ~ 35nm, and the substrate of described nano-catalytic noble electrode is titanium plate or plastic plate.
(8) film process or BAF biochemistry (BAF is biochemical)
Oil extraction waste water after step (7) electrolysis treatment enters membrane treatment appts or BAF, is purified, remove COD, SS further, be purified waste water by the filtering separation of membrane treatment appts or oxidation degradation effect to waste water; Described membrane treatment appts can be the one of membrane bioreactor (MBR device) or ultra-filtration equipment.
(9) desalination: the waste water after step (8) film process or BAF biochemistry (BAF is biochemical) enters desalting plant, be separated to obtain water-dialyzing and condensed water, water-dialyzing enters reuse water basin, and condensed water then enters evaporative crystallization pond through discharge channel discharge and carries out crystallization treatment; Described desalting plant can be the one of reverse osmosis system, nanofiltration system, electrodialysis or capacitive adsorption deionizing system.
embodiment 6
(1) breakdown of emulsion: oil extraction waste water to be collected in wastewater equalization pond 1-1 through pipeline and to mix in wastewater equalization pond 1-1, regulate the waste water water yield, to detect its oil-containing be 1420mg/L, COD be 2165mg/L, SS is 900mg/L, saltiness be 5200mg/L, pH is 9.3.Oil extraction waste water through wastewater equalization pond is pumped into breakdown of emulsion pond 1-3, add sulphur acid for adjusting pH to 4 breakdown of emulsion, by 0.1g/m 3add PAM.
(2) petroleum recovery: the oil extraction waste water of step (1) breakdown of emulsion gained is pumped into whizzer 1-5 and is separated, reclaim to obtain oil 1406g/m 3with the oil extraction waste water after de-oiling, oil stockpile is in oil stockpile tank 1-6, and the oil extraction waste water after de-oiling is stored in the 1-7 of wastewater collection pond.
Described centrifugation pumps in whizzer 1-5 by the oil extraction waste water after breakdown of emulsion, and be the oil of lower floor and the degreased wastewater on upper strata through centrifugation, the oil of lower floor reclaims through recovery tube; The centrifugal force of centrifugation is 3200 ~ 4000.
(3) phenol reclaims: adsorbed through phenol adsorption tower 2-1 by the degreased wastewater after step (2) petroleum recovery, the filled absorption of phenol, then through desorption with except desorbing agent, obtains crude phenols.The COD of waste water drops to 492mg/L from 759g/L.
(4) anaerobism: make to enter anaerobic pond 3-1 through step (3) light electrolysis gained waste water, improves the B/C value of waste water, improves the biodegradability of waste water through anaerobic treatment.
(5) aerobic: to make gained waste water after step (4) anaerobic treatment enter Aerobic Pond 3-2, by the organism in the further oxygenolysis waste water of aerobic treatment, the degree of depth removes COD and BOD.
(6) electrolysis treatment: the clear liquid of step (5) aerobic treatment gained is entered electrolysis cells 40 and carries out electrolysis treatment, the emission standard that namely water outlet reaches comprehensively " oil extraction waste water harnessing project technical specifications " (HJ2041-2014).
The operating voltage of the electrolysis machine that above-mentioned electrolysis cells 40 adopts is 1 ~ 36V, and two interelectrode voltages are 1 ~ 2V, and current density is 5 ~ 320mA/cm 2, the residence time of step (5) Aerobic Pond water outlet in electrolysis machine is 30s ~ 30min.
Electrolysis machine is provided with power supply and electrolyzer, and the electrode in described electrolyzer is the one in graphite, titanium, iron, aluminium, zinc, copper, lead, nickel, molybdenum, chromium, alloy and nano-catalytic noble electrode.
The top layer of nano-catalytic noble electrode is coated with the metal oxide containing precious metals inertia catalyst coatings that crystal grain is 10 ~ 35nm, and the substrate of described nano-catalytic noble electrode is titanium plate or plastic plate.
(7) film process or BAF biochemistry (BAF is biochemical)
Oil extraction waste water after step (6) electrolysis treatment enters membrane treatment appts or BAF, is purified, remove COD, SS further, be purified waste water by the filtering separation of membrane treatment appts or oxidation degradation effect to waste water; Described membrane treatment appts can be the one of membrane bioreactor (MBR device) or ultra-filtration equipment.
(8) desalination: the waste water after step (7) film process or BAF biochemistry (BAF is biochemical) enters desalting plant, be separated to obtain water-dialyzing and condensed water, water-dialyzing enters reuse water basin, and condensed water then enters evaporative crystallization pond through discharge channel discharge and carries out crystallization treatment; Described desalting plant can be the one of reverse osmosis system, nanofiltration system, electrodialysis or capacitive adsorption deionizing system.
Above are only the specific embodiment of the present invention, but design concept of the present invention is not limited thereto, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should belong to the behavior of invading scope.

Claims (15)

1. in oil extraction waste water, oily phenol reclaims and wastewater treatment regenerating unit, it is characterized in that, is formed by with lower unit:
(1) petroleum recovery unit: petroleum recovery unit is made up of breakdown of emulsion pond, gravity oil-removing device, whizzer or air-floating apparatus, petroleum storage tanks and wastewater collection pond; The import in breakdown of emulsion pond connects with the wastewater outlet of the sloping panel deoiling unit of front operation, the outlet in breakdown of emulsion pond connects with the water-in of gravity oil-removing device, whizzer or air-floating apparatus, the water outlet of gravity oil-removing device, whizzer or air-floating apparatus connects with the water-in in wastewater collection pond, and the oil outlet of gravity oil-removing device, whizzer or air-floating apparatus connects with the import of petroleum storage tanks;
(2) phenol recovery unit: phenol recovery unit is by phenol absorption tower, form containing phenol elutriant basin, dephenolize waste water basin, extraction agent basin, phenol extraction tank, distillation crystallization apparatus, phenol basin; The import of phenol adsorption tower connects with the water outlet in wastewater collection pond, the wastewater outlet of phenol adsorption tower connects with the import of dephenolize waste water basin, the elutriant outlet of phenol adsorption tower connects with the import containing phenol elutriant basin, outlet containing phenol elutriant basin connects with the waste water inlet of phenol extraction tank, the extraction agent import of phenol extraction tank connects with the outlet of extraction agent basin, the outlet of phenol extraction tank connects with the import of distillation crystallization apparatus, the lighting end of distillation crystallization apparatus connects with the import of extraction agent basin, and the last running of distillation crystallization apparatus connects with the import of phenol basin;
(3) biochemical treatment unit: biochemical treatment unit is made up of anaerobic treatment pool, aerobic treatment pond and settling tank; The water-in of anaerobic treatment pool is connected with the water outlet of phenol recovery unit, the water outlet of anaerobic treatment pool is connected with the water-in in aerobic treatment pond, the water outlet in aerobic treatment pond is connected with the water-in of settling tank, and the water outlet of settling tank is connected with the water-in of electrolysis cells;
(4) electrolysis cells: electrolysis cells is the one of general electrolytic equipment or nano-catalytic electrolyzer, for eliminate biochemistry be difficult to remove remaining COD and to waste water disinfection, kill the microorganism in waste water;
(5) Sewage advanced treatment unit: Sewage advanced treatment unit is made up of MBR device, ultra-filtration equipment or BAF;
(6) desalination reuse water productive unit: desalination reuse water productive unit is the one of reverse osmosis system, nanofiltration system, electrodialysis system or capacitive adsorption deionizing system; The water-in of desalination reuse water productive unit connects with the water outlet of the advanced water treatment basin of Sewage advanced treatment unit, the reuse water outlet of desalination reuse water productive unit connects with reuse water retention basin, and the condensed water outlet of desalination reuse water productive unit connects with the water-in of crystallizing pond; The reverse osmosis membrane assembly of reverse osmosis system is rolled membrane module, and mould material is cellulose acetate film or composite membrane in organic membrane, and the molecular weight cut-off of mould material is 50 ~ 200MWCO, and entrance pressure is 6.0 ~ 45.0bar, and going out pressure is 4.5 ~ 33.5bar; Nanofiltration membrane component in nanofiltration system is the one of tubular membrane component, rolled membrane module or plate film assembly, and operating pressure is 6 ~ 45bar, and working temperature is 20 ~ 45 DEG C; The working conditions of electrodialysis system is operating voltage pressure 0.5 ~ 3.0kg/cm 2, operating voltage 50 ~ 250V, strength of current 1 ~ 3A; The working conditions of capacitive adsorption deionizing system is volts DS is 110V ~ 2 × 10 6v;
(7) sludge treating block: sludge treating block comprises mud mixing pit, gravity concentration tank, water extracter and sewage sludge harmlessness treatment unit; Mud mixing pit is connected with the sludge outlet of petroleum recovery unit and biochemical treatment unit with valve respectively by pipeline, pump;
Described petroleum recovery unit, phenol recovery unit, biochemical treatment unit, electrolysis cells, Sewage advanced treatment unit, desalination reuse water productive unit are connected by pipeline, pump successively with sludge treating block.
2. in oil extraction waste water as claimed in claim 1, oily phenol reclaims and wastewater treatment regenerating unit, it is characterized in that: described gravity oil-removing device is the one in natural subsidence separate tank, sloping panel deoiling unit or hydrocyclone oil removal plant.
3. in oil extraction waste water as claimed in claim 1, oily phenol reclaims and wastewater treatment regenerating unit, it is characterized in that: also have a heat exchanger before described breakdown of emulsion pond.
4. in oil extraction waste water as claimed in claim 1, oily phenol reclaims and wastewater treatment regenerating unit, it is characterized in that: described breakdown of emulsion pond also comprises volume pump, emulsion splitter basin, collecting hood and gas purge tank; The outlet of emulsion splitter basin connects with the import of volume pump, and metering pump outlet connects with the emulsion splitter import in breakdown of emulsion pond; Collecting hood is positioned at the top in breakdown of emulsion pond, and is connected with purge of gas tank by pipeline.
5. in oil extraction waste water as claimed in claim 1, oily phenol reclaims and wastewater treatment regenerating unit, it is characterized in that: between the settling tank of described biochemical treatment unit and harmless treatment device, be also provided with a filtration unit or whizzer, described filtration unit is the one of MBR device, pillar ultra-filtration equipment, pipe type ultrafiltration device, and the mould material of filtration unit is the one of ceramic membrane, metallic membrane or organic membrane.
6. in oil extraction waste water as claimed in claim 1, oily phenol reclaims and wastewater treatment regenerating unit, it is characterized in that: be filled with gac or macroporous resin in the phenol absorption tower of described phenol recovery unit.
7. in oil extraction waste water as claimed in claim 1, oily phenol reclaims and wastewater treatment regenerating unit, it is characterized in that: between described phenol recovery unit and biochemical treatment unit, be also provided with a light electrolysis unit, described light electrolysis unit is by micro cell body or tank body, filler support, iron-carbon micro-electrolysis filler, aerating apparatus, wastewater collection cover and absorption tower are formed, filler support is arranged on micro cell or tank base, iron-carbon micro-electrolysis filler is placed on filler support, wastewater collection cover is arranged on the top of micro cell body or tank body, the waste gas produced during for collecting light electrolysis cell operation, absorption tower is built with the gac or the resin that process waste gas.
8. in oil extraction waste water, oily phenol reclaims and method of wastewater treatment, it is characterized in that, adopts oily phenol in oil extraction waste water according to claim 1 to reclaim and wastewater treatment regenerating unit, comprises the steps:
(1) breakdown of emulsion: be 50 ~ 600mg/L, COD by oil-containing be 300 ~ 7000mg/L, SS be 50 ~ 500mg/L, saltiness to be 1000 ~ 20000mg/L, pH be 6.5 ~ 9.5 oil extraction waste water add acid for adjusting pH to 2 ~ 6 breakdown of emulsion, the PAM then adding 0.1 ~ 10mg/L makes oil and wax separate out;
(2) petroleum recovery: by the oil extraction waste water after step (1) breakdown of emulsion through gravity settling separation, centrifugation or dissolved air flotation, obtain oil and the de-oiling of recovery or the waste water that dewaxes, the COD of de-oiling or dewaxing waste water drops to 900mg/L and accepts;
(3) phenol reclaims: the de-oiling after step (2) petroleum recovery or dewaxing waste water are carried out absorption phenol through adsorption tower, makes the COD of waste water drop to below 500mg/L from 900mg/L; Absorb saturated after, the saturated rear use of absorption tower adsorbs takes off lotion wash-out and reclaims after phenol, then uses regenerated liquid wash-out, and absorption inner-tower filling material is regenerated;
(4) anaerobism: will enter anaerobic pond by gained waste water after the recycling of step (3) phenol, improve the B/C value of waste water through anaerobic treatment, improve the biodegradability of waste water, the COD of waste water drops to below 300mg/l;
(5) aerobic: after step (4) anaerobic treatment, will to enter Aerobic Pond by gained waste water, by the organism in the further oxygenolysis waste water of aerobic treatment, the degree of depth removes COD and BOD, and the COD of waste water drops to below 150mg/l;
(6) electrolysis treatment: the clear liquid of step (5) aerobic treatment gained is entered electrolyzer and carries out electrolysis treatment, the emission standard that namely water outlet reaches comprehensively " oil extraction waste water harnessing project technical specifications " (HJ2041-2014);
(7) film process or BAF biochemistry
Oil extraction waste water after step (6) electrolysis treatment enters membrane treatment appts or BAF, is purified, remove COD, SS further, be purified waste water by the filtering separation of membrane treatment appts or oxidation degradation effect to waste water; Described membrane treatment appts is the one of membrane bioreactor or ultra-filtration equipment;
(8) desalination: the waste water after step (7) film process or BAF biochemistry enters desalting plant, and be separated to obtain water-dialyzing and condensed water, water-dialyzing enters reuse water basin, condensed water then enters evaporative crystallization pond through discharge channel discharge and carries out crystallization treatment; Described desalting plant is the one of reverse osmosis system, nanofiltration system, electrodialysis or capacitive adsorption deionizing system.
9. in oil extraction waste water as claimed in claim 8, oily phenol reclaims and method of wastewater treatment, it is characterized in that: acid described in step (1) breakdown of emulsion is the one of sulfuric acid, nitric acid, phosphoric acid or hydrochloric acid.
10. in oil extraction waste water as claimed in claim 9, oily phenol reclaims and method of wastewater treatment, it is characterized in that: the best acid of acid described in step (1) breakdown of emulsion is sulfuric acid.
In 11. oil extraction waste waters as claimed in claim 8, oily phenol reclaims and method of wastewater treatment, it is characterized in that: the best breakdown of emulsion condition of step (1) breakdown of emulsion waste water is added acid to regulate its pH to 2.5 ~ 3.
In 12. oil extraction waste waters as claimed in claim 8, oily phenol reclaims and method of wastewater treatment, it is characterized in that: the petroleum recovery described in step (2) pumps in gravity settling basin after the oil extraction waste water after gravity settling oil removing is added acid for adjusting pH to 2 ~ 6 breakdown of emulsion, be the oil on upper strata and the oil extraction waste water of lower floor through gravity settling separation, the oil on upper strata reclaims through recovery tube.
In 13. oil extraction waste waters as claimed in claim 8, oily phenol reclaims and method of wastewater treatment, it is characterized in that: the centrifugation described in petroleum recovery of step (2) pumps in whizzer after the oil extraction waste water after gravity settling oil removing is added acid for adjusting pH to 2 ~ 6, be the oil of lower floor and the degreased wastewater on upper strata through centrifugation, the oil of lower floor reclaims through recovery tube; The centrifugal force of centrifugation is 2200 ~ 4000.
In 14. oil extraction waste waters as claimed in claim 13, oily phenol reclaims and method of wastewater treatment, it is characterized in that: the top condition of centrifugation described in the petroleum recovery of step (2) is centrifugal force is 3200 ~ 4000.
In 15. oil extraction waste waters as claimed in claim 8, oily phenol reclaims and method of wastewater treatment, it is characterized in that: step (3) phenol reclaims between step (4) anaerobism, also comprise a Fe-C micro electrolysis treatment step, the COD of further removal 30 ~ 70% also improves its biodegradability, and the COD of waste water drops to below 400mg/L.
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105712587A (en) * 2016-04-29 2016-06-29 苏忠 Coal chemical wastewater treatment system
CN105712588A (en) * 2016-04-29 2016-06-29 苏忠 Automatic control system of coal chemical industry wastewater treatment equipment
CN105859029A (en) * 2016-04-29 2016-08-17 苏忠 Method for extracting evaporite materials from coal-chemical engineering wastewater
CN106007180A (en) * 2016-06-23 2016-10-12 江苏保瑞工业水处理有限公司 Sewage treatment system
CN106145568A (en) * 2016-09-10 2016-11-23 安徽蓝鼎环保能源科技有限公司 In a kind of oil extraction waste water, oil phenol reclaims and waste water processes regenerating unit
CN106219893A (en) * 2016-08-31 2016-12-14 重庆融极环保工程有限公司 A kind of well-drilling waste water processes technique
CN106380037A (en) * 2016-12-06 2017-02-08 张兖驹 Recycling and purifying method for oil well operation formate weighting agent
CN106495411A (en) * 2016-12-09 2017-03-15 南京大善环境科技有限公司 Wastewater treatment ICBB technique and device in Ginkgo Biloba Extract extraction process
WO2017067161A1 (en) * 2015-10-20 2017-04-27 波鹰(厦门)科技有限公司 Treatment device and method for oil extraction wastewater
CN107581963A (en) * 2017-10-24 2018-01-16 焦宁磊 A kind of fecaluria processing system, method and asexuality lavatory
WO2019177490A1 (en) * 2018-03-14 2019-09-19 Владимир Викторович МОСКАЛЁВ Method for recycling oily water as a means of improving ecological safety
CN111606461A (en) * 2020-05-18 2020-09-01 西安交通大学 Oil-salt-containing sewage treatment system and treatment method based on solar energy storage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013163963A1 (en) * 2012-05-03 2013-11-07 波鹰(厦门)科技有限公司 Device for sewage treatment and regenerative recycling and method thereof
CN103848472A (en) * 2014-01-13 2014-06-11 洛阳智方环保技术有限公司 Phenol-containing wastewater removal device and process
CN103936240A (en) * 2014-05-14 2014-07-23 山东盛阳集团有限公司 Coking wastewater treatment method
CN104860444A (en) * 2015-05-27 2015-08-26 张世文 Device and method for recovering coal tar in semi-coke wastewater
CN104944691A (en) * 2015-06-10 2015-09-30 张世文 Semicoke wastewater treatment and regeneration and resource reclamation device based on membrane concentration

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013163963A1 (en) * 2012-05-03 2013-11-07 波鹰(厦门)科技有限公司 Device for sewage treatment and regenerative recycling and method thereof
CN103848472A (en) * 2014-01-13 2014-06-11 洛阳智方环保技术有限公司 Phenol-containing wastewater removal device and process
CN103936240A (en) * 2014-05-14 2014-07-23 山东盛阳集团有限公司 Coking wastewater treatment method
CN104860444A (en) * 2015-05-27 2015-08-26 张世文 Device and method for recovering coal tar in semi-coke wastewater
CN104944691A (en) * 2015-06-10 2015-09-30 张世文 Semicoke wastewater treatment and regeneration and resource reclamation device based on membrane concentration

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张林生 主编: "《水的深度处理与回用技术》", 31 December 2008 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017067161A1 (en) * 2015-10-20 2017-04-27 波鹰(厦门)科技有限公司 Treatment device and method for oil extraction wastewater
CN105712588A (en) * 2016-04-29 2016-06-29 苏忠 Automatic control system of coal chemical industry wastewater treatment equipment
CN105859029A (en) * 2016-04-29 2016-08-17 苏忠 Method for extracting evaporite materials from coal-chemical engineering wastewater
CN105712587A (en) * 2016-04-29 2016-06-29 苏忠 Coal chemical wastewater treatment system
CN106007180A (en) * 2016-06-23 2016-10-12 江苏保瑞工业水处理有限公司 Sewage treatment system
CN106219893A (en) * 2016-08-31 2016-12-14 重庆融极环保工程有限公司 A kind of well-drilling waste water processes technique
CN106145568A (en) * 2016-09-10 2016-11-23 安徽蓝鼎环保能源科技有限公司 In a kind of oil extraction waste water, oil phenol reclaims and waste water processes regenerating unit
CN106380037A (en) * 2016-12-06 2017-02-08 张兖驹 Recycling and purifying method for oil well operation formate weighting agent
CN106495411A (en) * 2016-12-09 2017-03-15 南京大善环境科技有限公司 Wastewater treatment ICBB technique and device in Ginkgo Biloba Extract extraction process
CN106495411B (en) * 2016-12-09 2019-10-22 南京大善环境科技有限公司 Wastewater treatment ICBB technique and device in ginkgo biloba p.e extraction process
CN107581963A (en) * 2017-10-24 2018-01-16 焦宁磊 A kind of fecaluria processing system, method and asexuality lavatory
WO2019177490A1 (en) * 2018-03-14 2019-09-19 Владимир Викторович МОСКАЛЁВ Method for recycling oily water as a means of improving ecological safety
RU2703628C2 (en) * 2018-03-14 2019-10-21 Владимир Викторович Москалёв Method for utilization of oil-containing water as method for increasing environmental safety
CN111606461A (en) * 2020-05-18 2020-09-01 西安交通大学 Oil-salt-containing sewage treatment system and treatment method based on solar energy storage

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